Weidmüller SL-SMT 3.50/07/90RF 1.5SN BK BX Male Header Guide
The Weidmüller SL-SMT 3.50/07/90RF 1.5SN BK BX is a 7-pole male PCB header developed for compact and dependable board-level connection systems. It is designed for industrial electronics manufacturers who need a header that supports dense layouts, robust soldering performance, and reliable mating with compatible female connectors in the BL/SL 3.50 product family.
Product Configuration
This male header is built with a 3.50 mm pitch, a 90° plugging direction, and a clip-on flange design. It uses THT/THR solder connection and features tinned contacts in a black housing. The 1.5 mm solder pin length is intended for reflow-friendly manufacturing processes.
Technical Performance
The datasheet lists dimensions of 31.36 mm width, 11.1 mm depth, and 9 mm height. IEC rated current values are shown as 15 A for the minimum number of poles and 12 A for the maximum number of poles at 20 °C, with a rated voltage of 320 V. This makes the product highly relevant for signal and compact power-related connections in industrial board design.
Why a 7-Pole Header Matters
Seven-pole headers serve a valuable middle segment in PCB design. They allow slightly higher connection density than standard low-pole variants while still staying compact enough for tightly integrated boards. For designers working on automation and control products, that can simplify routing and reduce connector count.
Weidmüller SL-SMT 3.50/07/90RF Process and Design Benefits
The Weidmüller SL-SMT 3.50/07/90RF 1.5SN BK BX is optimized for SMT-oriented production environments while retaining the mechanical strength of THT/THR-style solder integration. That supports robust manufacturing outcomes and dependable long-term product performance.
Application Areas
This header is well suited to industrial control electronics, signal interface boards, machine modules, compact automation products, and devices where a 7-pole mating interface improves layout efficiency.
For more information about Weidmüller, exploring the wider 3.50 mm connector family can help refine the final specification.
Weidmüller SL-SMT 3.50/07/90RF FAQ
What is the Weidmüller SL-SMT 3.50/07/90RF 1.5SN BK BX?
It is a 7-pole male PCB header in the OMNIMATE Signal BL/SL 3.50 family.
What are its main rated values?
The datasheet shows IEC values up to 15 A for the minimum number of poles and 320 V rated voltage.
Why is the 7-pole format useful?
It helps designers create higher-density interfaces without stepping up to much larger connector footprints.
What manufacturing process is it optimized for?
It is optimized for reflow-oriented production thanks to its 1.5 mm solder pin length and THR/THT connection concept.
Where is it commonly used?
It is commonly used in compact control boards, automation modules, and industrial electronics interfaces.